quantum conundrum

memory functions to store local variables of external functions is a well-known conundrum (the combination of lexical scoping with first-class functions creates a Well-known difficulty for accessing outer local variables). For example:? 12345678 function add (x) returnfunction (y) return x+yendendadd2 = add(2)print(add2(5)) When ADD2 is called, its function body accesses the external local variable x (in Lua, the funct

conundrum, the world Wide Web Consortium, a nonprofit, standard-setting organization that adds style to HTML4.0.Style sheets are supported by all major browsers. Style sheet defines how elements are to be displayed. External stylesheets allow you to change the look and layout of all the pages that appear in your web, just by editing a single CSS document. (The principle is a dynamic variable)CSS is a breakthrough in the design world because it allows

//childhood) would be + if she//were still alivep = s;//What should happen to//The data members in p?C + + doesn ' t provide a by-reference refer to a different object. Faced with this conundrum, C + + refuses to compile the code. If you want-to-support assignment-a class containing a reference member, you must define the copy assignment operator y Ourself.Compilers behave similarly for classes containing const members. Finally, compilers reject impli

obvious: there is no real keyboard, only a touch analog keyboard that is far less convenient and used than the physical keyboard. The Yoga book has two operating system options, the Android version is priced at $499 (about 3333 yuan), and Windows 10 sells 549 dollars (about 3667 yuan), and the pricing seems reasonable for its functionality. However, you can also buy a real notepad and use your mobile phone to scan your notes, which will cost you a lot less. Yes, Yoga book is a fas

the origin and destination of all the traffic information, but also real-time, and then give you a clear road, how magical, but these we in livenet have already been implemented. Here's a look at the traditional content distribution network. 1. Why there is a content distribution network, the origin of the content distribution network The internet originated in an internal U.S. military network, Tim Berners-lee is one of the Internet inventors, he has long foreseen that in the near future netwo

enterprise, the other is that you are afraid of competition. But in fact, both of these things are electric fences without electricity. I think the answer to this conundrum is that creators should find a "daily job" that feeds their families. This noun was originally used by musicians accustomed to performing at night. It means: You do a job to make money, another job is because you like it. There is a good way to judge whether a person has t

Liu FengThis article is the second article in the Internet Neuroscience series. Science has two scientific problems in the spire position, the first is the mysteries of the universe, whether it is the 1929 American astronomer Hubble proposed the Galaxy's redshift and the distance between the galaxies is proportional to the Hubble law, and deduced that the galaxies are in each other away from the expansion of the universe said. Still, the European Atomic Center (CERN), in 2012, used a large hadro

Apple's electronic products, the biggest feature is its ease of use (usability)----simple, beautiful, easy to get started.They are not usually the most powerful, but often the best. On the left is a Mac, the right is a PC, which do you think looks better?Many product managers want to emulate these traits. But a conundrum will follow: It's hard to keep a product simple, but it also has a lot of new features. If you continue to add new fea

exchange parties can negotiate a key without sharing any secrets. ECC is a cryptosystem based on elliptic curve discrete logarithm problem, given an elliptic curve of a point P, an integer k, it is easy to solve Q=KP; Given a point p, Q, know Q=KP, it is a difficult problem to find an integer k. ECDH is built on this mathematical conundrum. Key negotiation process: assume that the key exchange is Alice, Bob, which has shared curve parameters (ellipti

media (aka please take my RSS feed)", He suggests: 1-Microchunk it-Reduce the content to its simplest form.2-Free it-Put it out there without wballs around it or strings on it.3-Syndicate it-Let anyone take it and run with it.4-Monetize it-Put the monetization and tracking systems into the microchunk. In theory, in the future when video streams monetize the way search queries have (whereby a search query is always associated with some kind of paid listing) then perhaps Wilson's thesis will prov

thread cannot do any other action while the server waits for the connection to be accepted. For this reason, the server wants to achieve multitasking only by implementing a multithreaded server: each time a new socket is created, it is necessary to create a fresh thread for it.NIO APII/O performance is often a sore spot for a modern application. Operating system continuous optimization improves I/O performance, and the JVM also provides a set of operating environments to help Java programmers c

preset size. The extra two values are MaxFieldLength and maxrequestbytes. Unlike MaxTokenSize, when a problem affects a Web application, it presents a different point. Windows Integrated authentication (Windows Integrated authentication) is enabled in Internet Explorer by default, in the Internet Options | The advanced interface appears as follows: Figure I When a user attempts to access a Web page with an alias or DNS name, DNS resolution attempts to do so. Because the size of the larger

calculus, so I will not say more. Interested readers can take a look at the "relive calculus" written by the professor of civil friends. I just read the beginning of the book, only to understand that "advanced mathematics is the study of the Movement of mathematics," the truth of the sentence.However, in my article "Understanding the Matrix", the concept of "movement" is not a continuous movement in calculus, but a change that occurs instantaneously. For example, this moment at point a, after a

me and Cortana ( to ): change time and space and return to Beijing ?2 Month 5 Day Morning 6 Point, I patted the "small pocket" with my hand, said: Come out! Cortana opened the closed bag from inside the bag, poked his head, glanced at me, and said, "Who are you?" Why doesn't Cortana know me? Who am I? ... I don't remember who I am, either. There is a blank in the mind,... Suddenly, I understand a reason: physical causality is not reversed, even with the help of

semaphore * sem );Void init_MUTEX_LOCKED (struct semaphore * sem ); Obtain semaphores Void down (struct semaphore * sem );Int down_interruptible (struct semaphore * sem );Int down_trylock (struct semaphore * sem ); Down_interruptible is used to interrupt the execution of this function. Therefore, you must judge the return value of this function. If the return value is non-zero, it indicates that no semaphore is obtained. Return semaphores Void up (struct semaphore * sem ); Example: Struct sc

eth0 parent classid CBQ bandwidth 10 Mbit Rate10 Mbit allot 1514 weight 1 Mbit PRIO 8 maxburst 20 avpkt 1000This command actually has more meaning than the previous command. Among them, 1514 is the MTU value.The following is an ISP class:# TC class add Dev eth0 parent 10classid CBQ bandwidth 10 Mbit Rate8 Mbit allot 1514 weight 800 kbit PRIO 5 maxburst 20 avpkt 1000 boundedWe allocated 8 MB of bandwidth to Him, and bounded indicates that this class cannot exceed this threshold value.The followi

whole and the parts )"In the CMM pilot project and subsequent project practices, it is easy to identify the document deliverables of the project. There are a lot of materials and templates on the Internet for reference. Version Control can use VSS or open source CVs, while the "baseline" concept that appears repeatedly in the CMM specification, in the initial stage of configuration management practices or small-scale projects, it is not mandatory. When the configuration identification and versi

Correct posture for AI to perform a hop: detailed explanation of the Auto-Jump Algorithm for a hop, aiauto-jumpAuthor: Xiao Taihong anjiePeking University | Graduate School of MathematicsAuthorized quantum bit Editing and PublishingFor reprint, contact the original author. Recently, a small game has jumped around the country. From a child to a big child, it seems that everyone is jumping. As an AI programmer at the NO (zhi) Institute (hui) Not (ban)

Happy New Year! This is a collection of key points of AI and deep learning in 2017, and ai in 2017RuO puxia Yi compiled from WILDMLProduced by QbitAI | public account QbitAI 2017 has officially left us. In the past year, there have been many records worth sorting out. The author of the blog WILDML, Denny Britz, who once worked on Google Brain for a year, combed and summarized the AI and deep learning events in his eyes in 2017. A brief excerpt from the quant